<header>SASL security options &quot;.&quot;</header>

<center><tt>smtp_sasl_security_options</tt></center>
<hr>

This parameter specifies the security options that the Postfix SMTP client uses
for SASL authentication when connecting to a remote SMTP server. <p>
The list is a comma-separated parameter of one or more of the following items:

<ul>
<li><tt>noplaintext</tt>: disallow methods that use plaintext passwords</li>
<li><tt>noactive</tt>: disallow methods subject to active (non-dictionary) attack</li>
<li><tt>nodictionary</tt>: disallow methods subject to passive (dictionary) attack</li>
<li><tt>noanonymous</tt>: disallow methods that allow anonymous authentication</li>
<li><tt>mutual_auth</tt>: only allow methods that provide mutual authentication (not available with SASL version 1)</li>
</ul>
